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Issue 8: Determine why slave select for Ethernet ended up on PB2
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Status:  Accepted
Owner:  arduino....@gmail.com


 
May 3, 2014
#1 xyzz...@gmail.com
This occurs because the Ethernet library does its own pin mapping (in utility/w5100.h, line 325) and doesn't have a check for the 1284P MCU, and therefore SS defaulted to the ATmega328P configuration, where SS is PB2. Easy enough to fix, it should probably be submitted as an RFC to Arduino; they should be receptive since they have already embraced the 1284P elsewhere.

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